Combining Philosophers

All the ideas for Anaxarchus, Peter Unger and George Santayana

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9 ideas

1. Philosophy / C. History of Philosophy / 1. History of Philosophy

8000	He who is ignorant of the history of philosophy is doomed to repeat it [Santayana, by MacIntyre]

7. Existence / A. Nature of Existence / 6. Criterion for Existence

18521

The criterion of existence is the possibility of action [Santayana]

7. Existence / D. Theories of Reality / 10. Vagueness / d. Vagueness as linguistic

9052	Vague predicates lack application; there are no borderline cases; vague F is not F [Unger, by Keefe/Smith]

9. Objects / A. Existence of Objects / 5. Simples

16070

There are no objects with proper parts; there are only mereological simples [Unger, by Wasserman]

13. Knowledge Criteria / C. External Justification / 6. Contextual Justification / b. Invariantism

8724	The meaning of 'know' does not change from courtroom to living room [Unger]

13. Knowledge Criteria / D. Scepticism / 1. Scepticism

8722	No one knows anything, and no one is ever justified or reasonable [Unger]

3061	Anaxarchus said that he was not even sure that he knew nothing [Anaxarchus, by Diog. Laertius]

13. Knowledge Criteria / D. Scepticism / 4. Demon Scepticism

8723	An evil scientist may give you a momentary life, with totally false memories [Unger]

22. Metaethics / A. Ethics Foundations / 2. Source of Ethics / e. Human nature

23060

The good is not relative, but is rooted in facts about human needs [Santayana]